First standard developed by Standards Subcommittee of Inst of Traffic Engrs and approved by Am Standards Assn was standard for adjustable face signal heads; author describes development of standard and research which led to agreement on standard colors for lenses of traffic lights.
Standards for traffic control devices
Indus Standardization
Industrial Standardization ; 14 , n 4, Part I
1943
2 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
World-wide standards for devices of traffic control
Engineering Index Backfile | 1953
|TIBKAT | 2015
TIBKAT | 2018
TIBKAT | 2016
Adjustable face traffic control signal head standards
Engineering Index Backfile | 1951